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kozerog [31]
3 years ago
11

given that 65000 student where present in the competitive exam if 8/25 of them were boys find the number of girls present in the

exam​
Mathematics
1 answer:
katrin [286]3 years ago
7 0

Answer:

44200 of them were girls

Step-by-step explanation:

If the ratio is 8:25, we must find x:65000

In order to change the ratio 8:25 into x:65000, we must multiply 25 by 2600. So you have to multiply 8 by 2600 too

8 x 2600 = 20800

65000 (total students) - 20800 (boy students) = 44200 (girl students)

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J= -2(3-k) make k the subject
lapo4ka [179]

Answer:

K=J+6/2

Step-by-step explanation:

J= -2(3-k)

simplify whats in the bracket

J= -6+2k

J+6=2k

Divide both sides by 2

J+6/2=2k/2

2 and 2 will cancel out

remaining K

So, Therefore K=J+6/2

Hope it Helped

3 0
3 years ago
Find s(20) for the sequence s(n)=5n-2,ne {1 2, 3,... }
zavuch27 [327]

Answer:

Step-by-step explanation:

c

S(20)=

5*20-2=100-2=98

3 0
3 years ago
I don't know what the answer is to divide 180 in a ratio of 4:5:9
Karolina [17]
Hello there,

First you need to add together the numbers.
4+5+9 = 18
Divide the total by this,
180 / 18 = 10
Multiply each number by 10.
40:50:90.

Hope This Helps You!
Good Luck Studying :)
4 0
3 years ago
Read 2 more answers
A bag contains 6 blue marbles, 10 red marbles, and 9 green marbles. If two marbles are drawn at random without replacement, what
bulgar [2K]
The answer is like this!

the total number of marbles all together is 25, so that would be the denominator.

blue: 6/25- simplified= already in simplified form
red:10/25- simplified= 2/5
green:9/25- simplified= already in simplified form

so the answer to your question is 2/5.

hope this helped!!



8 0
3 years ago
Read 2 more answers
PLEASE HELP!! 25 POINTS!! REALLY!!!
Snezhnost [94]
Reflex angle.
hope this helped!
3 0
3 years ago
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